drivers/net/wireless/bcm43xx/bcm43xx_radio.c

   1 /*
   2
   3   Broadcom BCM43xx wireless driver
   4
   5   Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
   6                      Stefano Brivio <st3@riseup.net>
   7                      Michael Buesch <mbuesch@freenet.de>
   8                      Danny van Dyk <kugelfang@gentoo.org>
   9                      Andreas Jaggi <andreas.jaggi@waterwave.ch>
  10
  11   Some parts of the code in this file are derived from the ipw2200
  12   driver  Copyright(c) 2003 - 2004 Intel Corporation.
  13
  14   This program is free software; you can redistribute it and/or modify
  15   it under the terms of the GNU General Public License as published by
  16   the Free Software Foundation; either version 2 of the License, or
  17   (at your option) any later version.
  18
  19   This program is distributed in the hope that it will be useful,
  20   but WITHOUT ANY WARRANTY; without even the implied warranty of
  21   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22   GNU General Public License for more details.
  23
  24   You should have received a copy of the GNU General Public License
  25   along with this program; see the file COPYING.  If not, write to
  26   the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
  27   Boston, MA 02110-1301, USA.
  28
  29 */
  30
  31 #include <linux/delay.h>
  32
  33 #include "bcm43xx.h"
  34 #include "bcm43xx_main.h"
  35 #include "bcm43xx_phy.h"
  36 #include "bcm43xx_radio.h"
  37 #include "bcm43xx_ilt.h"
  38
  39
  40 /* Table for bcm43xx_radio_calibrationvalue() */
  41 static const u16 rcc_table[16] = {
  42         0x0002, 0x0003, 0x0001, 0x000F,
  43         0x0006, 0x0007, 0x0005, 0x000F,
  44         0x000A, 0x000B, 0x0009, 0x000F,
  45         0x000E, 0x000F, 0x000D, 0x000F,
  46 };
  47
  48 /* Reverse the bits of a 4bit value.
  49  * Example:  1101 is flipped 1011
  50  */
  51 static u16 flip_4bit(u16 value)
  52 {
  53         u16 flipped = 0x0000;
  54
  55         assert((value & ~0x000F) == 0x0000);
  56
  57         flipped |= (value & 0x0001) << 3;
  58         flipped |= (value & 0x0002) << 1;
  59         flipped |= (value & 0x0004) >> 1;
  60         flipped |= (value & 0x0008) >> 3;
  61
  62         return flipped;
  63 }
  64
  65 /* Get the freq, as it has to be written to the device. */
  66 static inline
  67 u16 channel2freq_bg(u8 channel)
  68 {
  69         /* Frequencies are given as frequencies_bg[index] + 2.4GHz
  70          * Starting with channel 1
  71          */
  72         static const u16 frequencies_bg[14] = {
  73                 12, 17, 22, 27,
  74                 32, 37, 42, 47,
  75                 52, 57, 62, 67,
  76                 72, 84,
  77         };
  78
  79         assert(channel >= 1 && channel <= 14);
  80
  81         return frequencies_bg[channel - 1];
  82 }
  83
  84 /* Get the freq, as it has to be written to the device. */
  85 static inline
  86 u16 channel2freq_a(u8 channel)
  87 {
  88         assert(channel <= 200);
  89
  90         return (5000 + 5 * channel);
  91 }
  92
  93 void bcm43xx_radio_lock(struct bcm43xx_private *bcm)
  94 {
  95         u32 status;
  96
  97         status = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD);
  98         status |= BCM43xx_SBF_RADIOREG_LOCK;
  99         bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, status);
 100         mmiowb();
 101         udelay(10);
 102 }
 103
 104 void bcm43xx_radio_unlock(struct bcm43xx_private *bcm)
 105 {
 106         u32 status;
 107
 108         bcm43xx_read16(bcm, BCM43xx_MMIO_PHY_VER); /* dummy read */
 109         status = bcm43xx_read32(bcm, BCM43xx_MMIO_STATUS_BITFIELD);
 110         status &= ~BCM43xx_SBF_RADIOREG_LOCK;
 111         bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD, status);
 112         mmiowb();
 113 }
 114
 115 u16 bcm43xx_radio_read16(struct bcm43xx_private *bcm, u16 offset)
 116 {
 117         struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
 118         struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
 119
 120         switch (phy->type) {
 121         case BCM43xx_PHYTYPE_A:
 122                 offset |= 0x0040;
 123                 break;
 124         case BCM43xx_PHYTYPE_B:
 125                 if (radio->version == 0x2053) {
 126                         if (offset < 0x70)
 127                                 offset += 0x80;
 128                         else if (offset < 0x80)
 129                                 offset += 0x70;
 130                 } else if (radio->version == 0x2050) {
 131                         offset |= 0x80;
 132                 } else
 133                         assert(0);
 134                 break;
 135         case BCM43xx_PHYTYPE_G:
 136                 offset |= 0x80;
 137                 break;
 138         }
 139
 140         bcm43xx_write16(bcm, BCM43xx_MMIO_RADIO_CONTROL, offset);
 141         return bcm43xx_read16(bcm, BCM43xx_MMIO_RADIO_DATA_LOW);
 142 }
 143
 144 void bcm43xx_radio_write16(struct bcm43xx_private *bcm, u16 offset, u16 val)
 145 {
 146         bcm43xx_write16(bcm, BCM43xx_MMIO_RADIO_CONTROL, offset);
 147         mmiowb();
 148         bcm43xx_write16(bcm, BCM43xx_MMIO_RADIO_DATA_LOW, val);
 149 }
 150
 151 static void bcm43xx_set_all_gains(struct bcm43xx_private *bcm,
 152                                   s16 first, s16 second, s16 third)
 153 {
 154         struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
 155         u16 i;
 156         u16 start = 0x08, end = 0x18;
 157         u16 offset = 0x0400;
 158         u16 tmp;
 159
 160         if (phy->rev <= 1) {
 161                 offset = 0x5000;
 162                 start = 0x10;
 163                 end = 0x20;
 164         }
 165
 166         for (i = 0; i < 4; i++)
 167                 bcm43xx_ilt_write(bcm, offset + i, first);
 168
 169         for (i = start; i < end; i++)
 170                 bcm43xx_ilt_write(bcm, offset + i, second);
 171
 172         if (third != -1) {
 173                 tmp = ((u16)third << 14) | ((u16)third << 6);
 174                 bcm43xx_phy_write(bcm, 0x04A0,
 175                                   (bcm43xx_phy_read(bcm, 0x04A0) & 0xBFBF) | tmp);
 176                 bcm43xx_phy_write(bcm, 0x04A1,
 177                                   (bcm43xx_phy_read(bcm, 0x04A1) & 0xBFBF) | tmp);
 178                 bcm43xx_phy_write(bcm, 0x04A2,
 179                                   (bcm43xx_phy_read(bcm, 0x04A2) & 0xBFBF) | tmp);
 180         }
 181         bcm43xx_dummy_transmission(bcm);
 182 }
 183
 184 static void bcm43xx_set_original_gains(struct bcm43xx_private *bcm)
 185 {
 186         struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
 187         u16 i, tmp;
 188         u16 offset = 0x0400;
 189         u16 start = 0x0008, end = 0x0018;
 190
 191         if (phy->rev <= 1) {
 192                 offset = 0x5000;
 193                 start = 0x0010;
 194                 end = 0x0020;
 195         }
 196
 197         for (i = 0; i < 4; i++) {
 198                 tmp = (i & 0xFFFC);
 199                 tmp |= (i & 0x0001) << 1;
 200                 tmp |= (i & 0x0002) >> 1;
 201
 202                 bcm43xx_ilt_write(bcm, offset + i, tmp);
 203         }
 204
 205         for (i = start; i < end; i++)
 206                 bcm43xx_ilt_write(bcm, offset + i, i - start);
 207
 208         bcm43xx_phy_write(bcm, 0x04A0,
 209                           (bcm43xx_phy_read(bcm, 0x04A0) & 0xBFBF) | 0x4040);
 210         bcm43xx_phy_write(bcm, 0x04A1,
 211                           (bcm43xx_phy_read(bcm, 0x04A1) & 0xBFBF) | 0x4040);
 212         bcm43xx_phy_write(bcm, 0x04A2,
 213                           (bcm43xx_phy_read(bcm, 0x04A2) & 0xBFBF) | 0x4000);
 214         bcm43xx_dummy_transmission(bcm);
 215 }
 216
 217 /* Synthetic PU workaround */
 218 static void bcm43xx_synth_pu_workaround(struct bcm43xx_private *bcm, u8 channel)
 219 {
 220         struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
 221
 222         if (radio->version != 0x2050 || radio->revision >= 6) {
 223                 /* We do not need the workaround. */
 224                 return;
 225         }
 226
 227         if (channel <= 10) {
 228                 bcm43xx_write16(bcm, BCM43xx_MMIO_CHANNEL,
 229                                 channel2freq_bg(channel + 4));
 230         } else {
 231                 bcm43xx_write16(bcm, BCM43xx_MMIO_CHANNEL,
 232                                 channel2freq_bg(1));
 233         }
 234         udelay(100);
 235         bcm43xx_write16(bcm, BCM43xx_MMIO_CHANNEL,
 236                         channel2freq_bg(channel));
 237 }
 238
 239 u8 bcm43xx_radio_aci_detect(struct bcm43xx_private *bcm, u8 channel)
 240 {
 241         struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
 242         u8 ret = 0;
 243         u16 saved, rssi, temp;
 244         int i, j = 0;
 245
 246         saved = bcm43xx_phy_read(bcm, 0x0403);
 247         bcm43xx_radio_selectchannel(bcm, channel, 0);
 248         bcm43xx_phy_write(bcm, 0x0403, (saved & 0xFFF8) | 5);
 249         if (radio->aci_hw_rssi)
 250                 rssi = bcm43xx_phy_read(bcm, 0x048A) & 0x3F;
 251         else
 252                 rssi = saved & 0x3F;
 253         /* clamp temp to signed 5bit */
 254         if (rssi > 32)
 255                 rssi -= 64;
 256         for (i = 0;i < 100; i++) {
 257                 temp = (bcm43xx_phy_read(bcm, 0x047F) >> 8) & 0x3F;
 258                 if (temp > 32)
 259                         temp -= 64;
 260                 if (temp < rssi)
 261                         j++;
 262                 if (j >= 20)
 263                         ret = 1;
 264         }
 265         bcm43xx_phy_write(bcm, 0x0403, saved);
 266
 267         return ret;
 268 }
 269
 270 u8 bcm43xx_radio_aci_scan(struct bcm43xx_private *bcm)
 271 {
 272         struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
 273         struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
 274         u8 ret[13];
 275         unsigned int channel = radio->channel;
 276         unsigned int i, j, start, end;
 277         unsigned long phylock_flags;
 278
 279         if (!((phy->type == BCM43xx_PHYTYPE_G) && (phy->rev > 0)))
 280                 return 0;
 281
 282         bcm43xx_phy_lock(bcm, phylock_flags);
 283         bcm43xx_radio_lock(bcm);
 284         bcm43xx_phy_write(bcm, 0x0802,
 285                           bcm43xx_phy_read(bcm, 0x0802) & 0xFFFC);
 286         bcm43xx_phy_write(bcm, BCM43xx_PHY_G_CRS,
 287                           bcm43xx_phy_read(bcm, BCM43xx_PHY_G_CRS) & 0x7FFF);
 288         bcm43xx_set_all_gains(bcm, 3, 8, 1);
 289
 290         start = (channel - 5 > 0) ? channel - 5 : 1;
 291         end = (channel + 5 < 14) ? channel + 5 : 13;
 292
 293         for (i = start; i <= end; i++) {
 294                 if (abs(channel - i) > 2)
 295                         ret[i-1] = bcm43xx_radio_aci_detect(bcm, i);
 296         }
 297         bcm43xx_radio_selectchannel(bcm, channel, 0);
 298         bcm43xx_phy_write(bcm, 0x0802,
 299                           (bcm43xx_phy_read(bcm, 0x0802) & 0xFFFC) | 0x0003);
 300         bcm43xx_phy_write(bcm, 0x0403,
 301                           bcm43xx_phy_read(bcm, 0x0403) & 0xFFF8);
 302         bcm43xx_phy_write(bcm, BCM43xx_PHY_G_CRS,
 303                           bcm43xx_phy_read(bcm, BCM43xx_PHY_G_CRS) | 0x8000);
 304         bcm43xx_set_original_gains(bcm);
 305         for (i = 0; i < 13; i++) {
 306                 if (!ret[i])
 307                         continue;
 308                 end = (i + 5 < 13) ? i + 5 : 13;
 309                 for (j = i; j < end; j++)
 310                         ret[j] = 1;
 311         }
 312         bcm43xx_radio_unlock(bcm);
 313         bcm43xx_phy_unlock(bcm, phylock_flags);
 314
 315         return ret[channel - 1];
 316 }
 317
 318 /* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
 319 void bcm43xx_nrssi_hw_write(struct bcm43xx_private *bcm, u16 offset, s16 val)
 320 {
 321         bcm43xx_phy_write(bcm, BCM43xx_PHY_NRSSILT_CTRL, offset);
 322         mmiowb();
 323         bcm43xx_phy_write(bcm, BCM43xx_PHY_NRSSILT_DATA, (u16)val);
 324 }
 325
 326 /* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
 327 s16 bcm43xx_nrssi_hw_read(struct bcm43xx_private *bcm, u16 offset)
 328 {
 329         u16 val;
 330
 331         bcm43xx_phy_write(bcm, BCM43xx_PHY_NRSSILT_CTRL, offset);
 332         val = bcm43xx_phy_read(bcm, BCM43xx_PHY_NRSSILT_DATA);
 333
 334         return (s16)val;
 335 }
 336
 337 /* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
 338 void bcm43xx_nrssi_hw_update(struct bcm43xx_private *bcm, u16 val)
 339 {
 340         u16 i;
 341         s16 tmp;
 342
 343         for (i = 0; i < 64; i++) {
 344                 tmp = bcm43xx_nrssi_hw_read(bcm, i);
 345                 tmp -= val;
 346                 tmp = limit_value(tmp, -32, 31);
 347                 bcm43xx_nrssi_hw_write(bcm, i, tmp);
 348         }
 349 }
 350
 351 /* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
 352 void bcm43xx_nrssi_mem_update(struct bcm43xx_private *bcm)
 353 {
 354         struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
 355         s16 i, delta;
 356         s32 tmp;
 357
 358         delta = 0x1F - radio->nrssi[0];
 359         for (i = 0; i < 64; i++) {
 360                 tmp = (i - delta) * radio->nrssislope;
 361                 tmp /= 0x10000;
 362                 tmp += 0x3A;
 363                 tmp = limit_value(tmp, 0, 0x3F);
 364                 radio->nrssi_lt[i] = tmp;
 365         }
 366 }
 367
 368 static void bcm43xx_calc_nrssi_offset(struct bcm43xx_private *bcm)
 369 {
 370         struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
 371         u16 backup[20] = { 0 };
 372         s16 v47F;
 373         u16 i;
 374         u16 saved = 0xFFFF;
 375
 376         backup[0] = bcm43xx_phy_read(bcm, 0x0001);
 377         backup[1] = bcm43xx_phy_read(bcm, 0x0811);
 378         backup[2] = bcm43xx_phy_read(bcm, 0x0812);
 379         backup[3] = bcm43xx_phy_read(bcm, 0x0814);
 380         backup[4] = bcm43xx_phy_read(bcm, 0x0815);
 381         backup[5] = bcm43xx_phy_read(bcm, 0x005A);
 382         backup[6] = bcm43xx_phy_read(bcm, 0x0059);
 383         backup[7] = bcm43xx_phy_read(bcm, 0x0058);
 384         backup[8] = bcm43xx_phy_read(bcm, 0x000A);
 385         backup[9] = bcm43xx_phy_read(bcm, 0x0003);
 386         backup[10] = bcm43xx_radio_read16(bcm, 0x007A);
 387         backup[11] = bcm43xx_radio_read16(bcm, 0x0043);
 388
 389         bcm43xx_phy_write(bcm, 0x0429,
 390                           bcm43xx_phy_read(bcm, 0x0429) & 0x7FFF);
 391         bcm43xx_phy_write(bcm, 0x0001,
 392                           (bcm43xx_phy_read(bcm, 0x0001) & 0x3FFF) | 0x4000);
 393         bcm43xx_phy_write(bcm, 0x0811,
 394                           bcm43xx_phy_read(bcm, 0x0811) | 0x000C);
 395         bcm43xx_phy_write(bcm, 0x0812,
 396                           (bcm43xx_phy_read(bcm, 0x0812) & 0xFFF3) | 0x0004);
 397         bcm43xx_phy_write(bcm, 0x0802,
 398                           bcm43xx_phy_read(bcm, 0x0802) & ~(0x1 | 0x2));
 399         if (phy->rev >= 6) {
 400                 backup[12] = bcm43xx_phy_read(bcm, 0x002E);
 401                 backup[13] = bcm43xx_phy_read(bcm, 0x002F);
 402                 backup[14] = bcm43xx_phy_read(bcm, 0x080F);
 403                 backup[15] = bcm43xx_phy_read(bcm, 0x0810);
 404                 backup[16] = bcm43xx_phy_read(bcm, 0x0801);
 405                 backup[17] = bcm43xx_phy_read(bcm, 0x0060);
 406                 backup[18] = bcm43xx_phy_read(bcm, 0x0014);
 407                 backup[19] = bcm43xx_phy_read(bcm, 0x0478);
 408
 409                 bcm43xx_phy_write(bcm, 0x002E, 0);
 410                 bcm43xx_phy_write(bcm, 0x002F, 0);
 411                 bcm43xx_phy_write(bcm, 0x080F, 0);
 412                 bcm43xx_phy_write(bcm, 0x0810, 0);
 413                 bcm43xx_phy_write(bcm, 0x0478,
 414                                   bcm43xx_phy_read(bcm, 0x0478) | 0x0100);
 415                 bcm43xx_phy_write(bcm, 0x0801,
 416                                   bcm43xx_phy_read(bcm, 0x0801) | 0x0040);
 417                 bcm43xx_phy_write(bcm, 0x0060,
 418                                   bcm43xx_phy_read(bcm, 0x0060) | 0x0040);
 419                 bcm43xx_phy_write(bcm, 0x0014,
 420                                   bcm43xx_phy_read(bcm, 0x0014) | 0x0200);
 421         }
 422         bcm43xx_radio_write16(bcm, 0x007A,
 423                               bcm43xx_radio_read16(bcm, 0x007A) | 0x0070);
 424         bcm43xx_radio_write16(bcm, 0x007A,
 425                               bcm43xx_radio_read16(bcm, 0x007A) | 0x0080);
 426         udelay(30);
 427
 428         v47F = (s16)((bcm43xx_phy_read(bcm, 0x047F) >> 8) & 0x003F);
 429         if (v47F >= 0x20)
 430                 v47F -= 0x40;
 431         if (v47F == 31) {
 432                 for (i = 7; i >= 4; i--) {
 433                         bcm43xx_radio_write16(bcm, 0x007B, i);
 434                         udelay(20);
 435                         v47F = (s16)((bcm43xx_phy_read(bcm, 0x047F) >> 8) & 0x003F);
 436                         if (v47F >= 0x20)
 437                                 v47F -= 0x40;
 438                         if (v47F < 31 && saved == 0xFFFF)
 439                                 saved = i;
 440                 }
 441                 if (saved == 0xFFFF)
 442                         saved = 4;
 443         } else {
 444                 bcm43xx_radio_write16(bcm, 0x007A,
 445                                       bcm43xx_radio_read16(bcm, 0x007A) & 0x007F);
 446                 bcm43xx_phy_write(bcm, 0x0814,
 447                                   bcm43xx_phy_read(bcm, 0x0814) | 0x0001);
 448                 bcm43xx_phy_write(bcm, 0x0815,
 449                                   bcm43xx_phy_read(bcm, 0x0815) & 0xFFFE);
 450                 bcm43xx_phy_write(bcm, 0x0811,
 451                                   bcm43xx_phy_read(bcm, 0x0811) | 0x000C);
 452                 bcm43xx_phy_write(bcm, 0x0812,
 453                                   bcm43xx_phy_read(bcm, 0x0812) | 0x000C);
 454                 bcm43xx_phy_write(bcm, 0x0811,
 455                                   bcm43xx_phy_read(bcm, 0x0811) | 0x0030);
 456                 bcm43xx_phy_write(bcm, 0x0812,
 457                                   bcm43xx_phy_read(bcm, 0x0812) | 0x0030);
 458                 bcm43xx_phy_write(bcm, 0x005A, 0x0480);
 459                 bcm43xx_phy_write(bcm, 0x0059, 0x0810);
 460                 bcm43xx_phy_write(bcm, 0x0058, 0x000D);
 461                 if (phy->rev == 0) {
 462                         bcm43xx_phy_write(bcm, 0x0003, 0x0122);
 463                 } else {
 464                         bcm43xx_phy_write(bcm, 0x000A,
 465                                           bcm43xx_phy_read(bcm, 0x000A)
 466                                           | 0x2000);
 467                 }
 468                 bcm43xx_phy_write(bcm, 0x0814,
 469                                   bcm43xx_phy_read(bcm, 0x0814) | 0x0004);
 470                 bcm43xx_phy_write(bcm, 0x0815,
 471                                   bcm43xx_phy_read(bcm, 0x0815) & 0xFFFB);
 472                 bcm43xx_phy_write(bcm, 0x0003,
 473                                   (bcm43xx_phy_read(bcm, 0x0003) & 0xFF9F)
 474                                   | 0x0040);
 475                 bcm43xx_radio_write16(bcm, 0x007A,
 476                                       bcm43xx_radio_read16(bcm, 0x007A) | 0x000F);
 477                 bcm43xx_set_all_gains(bcm, 3, 0, 1);
 478                 bcm43xx_radio_write16(bcm, 0x0043,
 479                                       (bcm43xx_radio_read16(bcm, 0x0043)
 480                                        & 0x00F0) | 0x000F);
 481                 udelay(30);
 482                 v47F = (s16)((bcm43xx_phy_read(bcm, 0x047F) >> 8) & 0x003F);
 483                 if (v47F >= 0x20)
 484                         v47F -= 0x40;
 485                 if (v47F == -32) {
 486                         for (i = 0; i < 4; i++) {
 487                                 bcm43xx_radio_write16(bcm, 0x007B, i);
 488                                 udelay(20);
 489                                 v47F = (s16)((bcm43xx_phy_read(bcm, 0x047F) >> 8) & 0x003F);
 490                                 if (v47F >= 0x20)
 491                                         v47F -= 0x40;
 492                                 if (v47F > -31 && saved == 0xFFFF)
 493                                         saved = i;
 494                         }
 495                         if (saved == 0xFFFF)
 496                                 saved = 3;
 497                 } else
 498                         saved = 0;
 499         }
 500         bcm43xx_radio_write16(bcm, 0x007B, saved);
 501
 502         if (phy->rev >= 6) {
 503                 bcm43xx_phy_write(bcm, 0x002E, backup[12]);
 504                 bcm43xx_phy_write(bcm, 0x002F, backup[13]);
 505                 bcm43xx_phy_write(bcm, 0x080F, backup[14]);
 506                 bcm43xx_phy_write(bcm, 0x0810, backup[15]);
 507         }
 508         bcm43xx_phy_write(bcm, 0x0814, backup[3]);
 509         bcm43xx_phy_write(bcm, 0x0815, backup[4]);
 510         bcm43xx_phy_write(bcm, 0x005A, backup[5]);
 511         bcm43xx_phy_write(bcm, 0x0059, backup[6]);
 512         bcm43xx_phy_write(bcm, 0x0058, backup[7]);
 513         bcm43xx_phy_write(bcm, 0x000A, backup[8]);
 514         bcm43xx_phy_write(bcm, 0x0003, backup[9]);
 515         bcm43xx_radio_write16(bcm, 0x0043, backup[11]);
 516         bcm43xx_radio_write16(bcm, 0x007A, backup[10]);
 517         bcm43xx_phy_write(bcm, 0x0802,
 518                           bcm43xx_phy_read(bcm, 0x0802) | 0x1 | 0x2);
 519         bcm43xx_phy_write(bcm, 0x0429,
 520                           bcm43xx_phy_read(bcm, 0x0429) | 0x8000);
 521         bcm43xx_set_original_gains(bcm);
 522         if (phy->rev >= 6) {
 523                 bcm43xx_phy_write(bcm, 0x0801, backup[16]);
 524                 bcm43xx_phy_write(bcm, 0x0060, backup[17]);
 525                 bcm43xx_phy_write(bcm, 0x0014, backup[18]);
 526                 bcm43xx_phy_write(bcm, 0x0478, backup[19]);
 527         }
 528         bcm43xx_phy_write(bcm, 0x0001, backup[0]);
 529         bcm43xx_phy_write(bcm, 0x0812, backup[2]);
 530         bcm43xx_phy_write(bcm, 0x0811, backup[1]);
 531 }
 532
 533 void bcm43xx_calc_nrssi_slope(struct bcm43xx_private *bcm)
 534 {
 535         struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
 536         struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
 537         u16 backup[18] = { 0 };
 538         u16 tmp;
 539         s16 nrssi0, nrssi1;
 540
 541         switch (phy->type) {
 542         case BCM43xx_PHYTYPE_B:
 543                 backup[0] = bcm43xx_radio_read16(bcm, 0x007A);
 544                 backup[1] = bcm43xx_radio_read16(bcm, 0x0052);
 545                 backup[2] = bcm43xx_radio_read16(bcm, 0x0043);
 546                 backup[3] = bcm43xx_phy_read(bcm, 0x0030);
 547                 backup[4] = bcm43xx_phy_read(bcm, 0x0026);
 548                 backup[5] = bcm43xx_phy_read(bcm, 0x0015);
 549                 backup[6] = bcm43xx_phy_read(bcm, 0x002A);
 550                 backup[7] = bcm43xx_phy_read(bcm, 0x0020);
 551                 backup[8] = bcm43xx_phy_read(bcm, 0x005A);
 552                 backup[9] = bcm43xx_phy_read(bcm, 0x0059);
 553                 backup[10] = bcm43xx_phy_read(bcm, 0x0058);
 554                 backup[11] = bcm43xx_read16(bcm, 0x03E2);
 555                 backup[12] = bcm43xx_read16(bcm, 0x03E6);
 556                 backup[13] = bcm43xx_read16(bcm, BCM43xx_MMIO_CHANNEL_EXT);
 557
 558                 tmp  = bcm43xx_radio_read16(bcm, 0x007A);
 559                 tmp &= (phy->rev >= 5) ? 0x007F : 0x000F;
 560                 bcm43xx_radio_write16(bcm, 0x007A, tmp);
 561                 bcm43xx_phy_write(bcm, 0x0030, 0x00FF);
 562                 bcm43xx_write16(bcm, 0x03EC, 0x7F7F);
 563                 bcm43xx_phy_write(bcm, 0x0026, 0x0000);
 564                 bcm43xx_phy_write(bcm, 0x0015,
 565                                   bcm43xx_phy_read(bcm, 0x0015) | 0x0020);
 566                 bcm43xx_phy_write(bcm, 0x002A, 0x08A3);
 567                 bcm43xx_radio_write16(bcm, 0x007A,
 568                                       bcm43xx_radio_read16(bcm, 0x007A) | 0x0080);
 569
 570                 nrssi0 = (s16)bcm43xx_phy_read(bcm, 0x0027);
 571                 bcm43xx_radio_write16(bcm, 0x007A,
 572                                       bcm43xx_radio_read16(bcm, 0x007A) & 0x007F);
 573                 if (phy->rev >= 2) {
 574                         bcm43xx_write16(bcm, 0x03E6, 0x0040);
 575                 } else if (phy->rev == 0) {
 576                         bcm43xx_write16(bcm, 0x03E6, 0x0122);
 577                 } else {
 578                         bcm43xx_write16(bcm, BCM43xx_MMIO_CHANNEL_EXT,
 579                                         bcm43xx_read16(bcm, BCM43xx_MMIO_CHANNEL_EXT) & 0x2000);
 580                 }
 581                 bcm43xx_phy_write(bcm, 0x0020, 0x3F3F);
 582                 bcm43xx_phy_write(bcm, 0x0015, 0xF330);
 583                 bcm43xx_radio_write16(bcm, 0x005A, 0x0060);
 584                 bcm43xx_radio_write16(bcm, 0x0043,
 585                                       bcm43xx_radio_read16(bcm, 0x0043) & 0x00F0);
 586                 bcm43xx_phy_write(bcm, 0x005A, 0x0480);
 587                 bcm43xx_phy_write(bcm, 0x0059, 0x0810);
 588                 bcm43xx_phy_write(bcm, 0x0058, 0x000D);
 589                 udelay(20);
 590
 591                 nrssi1 = (s16)bcm43xx_phy_read(bcm, 0x0027);
 592                 bcm43xx_phy_write(bcm, 0x0030, backup[3]);
 593                 bcm43xx_radio_write16(bcm, 0x007A, backup[0]);
 594                 bcm43xx_write16(bcm, 0x03E2, backup[11]);
 595                 bcm43xx_phy_write(bcm, 0x0026, backup[4]);
 596                 bcm43xx_phy_write(bcm, 0x0015, backup[5]);
 597                 bcm43xx_phy_write(bcm, 0x002A, backup[6]);
 598                 bcm43xx_synth_pu_workaround(bcm, radio->channel);
 599                 if (phy->rev != 0)
 600                         bcm43xx_write16(bcm, 0x03F4, backup[13]);
 601
 602                 bcm43xx_phy_write(bcm, 0x0020, backup[7]);
 603                 bcm43xx_phy_write(bcm, 0x005A, backup[8]);
 604                 bcm43xx_phy_write(bcm, 0x0059, backup[9]);
 605                 bcm43xx_phy_write(bcm, 0x0058, backup[10]);
 606                 bcm43xx_radio_write16(bcm, 0x0052, backup[1]);
 607                 bcm43xx_radio_write16(bcm, 0x0043, backup[2]);
 608
 609                 if (nrssi0 == nrssi1)
 610                         radio->nrssislope = 0x00010000;
 611                 else
 612                         radio->nrssislope = 0x00400000 / (nrssi0 - nrssi1);
 613
 614                 if (nrssi0 <= -4) {
 615                         radio->nrssi[0] = nrssi0;
 616                         radio->nrssi[1] = nrssi1;
 617                 }
 618                 break;
 619         case BCM43xx_PHYTYPE_G:
 620                 if (radio->revision >= 9)
 621                         return;
 622                 if (radio->revision == 8)
 623                         bcm43xx_calc_nrssi_offset(bcm);
 624
 625                 bcm43xx_phy_write(bcm, BCM43xx_PHY_G_CRS,
 626                                   bcm43xx_phy_read(bcm, BCM43xx_PHY_G_CRS) & 0x7FFF);
 627                 bcm43xx_phy_write(bcm, 0x0802,
 628                                   bcm43xx_phy_read(bcm, 0x0802) & 0xFFFC);
 629                 backup[7] = bcm43xx_read16(bcm, 0x03E2);
 630                 bcm43xx_write16(bcm, 0x03E2,
 631                                 bcm43xx_read16(bcm, 0x03E2) | 0x8000);
 632                 backup[0] = bcm43xx_radio_read16(bcm, 0x007A);
 633                 backup[1] = bcm43xx_radio_read16(bcm, 0x0052);
 634                 backup[2] = bcm43xx_radio_read16(bcm, 0x0043);
 635                 backup[3] = bcm43xx_phy_read(bcm, 0x0015);
 636                 backup[4] = bcm43xx_phy_read(bcm, 0x005A);
 637                 backup[5] = bcm43xx_phy_read(bcm, 0x0059);
 638                 backup[6] = bcm43xx_phy_read(bcm, 0x0058);
 639                 backup[8] = bcm43xx_read16(bcm, 0x03E6);
 640                 backup[9] = bcm43xx_read16(bcm, BCM43xx_MMIO_CHANNEL_EXT);
 641                 if (phy->rev >= 3) {
 642                         backup[10] = bcm43xx_phy_read(bcm, 0x002E);
 643                         backup[11] = bcm43xx_phy_read(bcm, 0x002F);
 644                         backup[12] = bcm43xx_phy_read(bcm, 0x080F);
 645                         backup[13] = bcm43xx_phy_read(bcm, BCM43xx_PHY_G_LO_CONTROL);
 646                         backup[14] = bcm43xx_phy_read(bcm, 0x0801);
 647                         backup[15] = bcm43xx_phy_read(bcm, 0x0060);
 648                         backup[16] = bcm43xx_phy_read(bcm, 0x0014);
 649                         backup[17] = bcm43xx_phy_read(bcm, 0x0478);
 650                         bcm43xx_phy_write(bcm, 0x002E, 0);
 651                         bcm43xx_phy_write(bcm, BCM43xx_PHY_G_LO_CONTROL, 0);
 652                         switch (phy->rev) {
 653                         case 4: case 6: case 7:
 654                                 bcm43xx_phy_write(bcm, 0x0478,
 655                                                   bcm43xx_phy_read(bcm, 0x0478)
 656                                                   | 0x0100);
 657                                 bcm43xx_phy_write(bcm, 0x0801,
 658                                                   bcm43xx_phy_read(bcm, 0x0801)
 659                                                   | 0x0040);
 660                                 break;
 661                         case 3: case 5:
 662                                 bcm43xx_phy_write(bcm, 0x0801,
 663                                                   bcm43xx_phy_read(bcm, 0x0801)
 664                                                   & 0xFFBF);
 665                                 break;
 666                         }
 667                         bcm43xx_phy_write(bcm, 0x0060,
 668                                           bcm43xx_phy_read(bcm, 0x0060)
 669                                           | 0x0040);
 670                         bcm43xx_phy_write(bcm, 0x0014,
 671                                           bcm43xx_phy_read(bcm, 0x0014)
 672                                           | 0x0200);
 673                 }
 674                 bcm43xx_radio_write16(bcm, 0x007A,
 675                                       bcm43xx_radio_read16(bcm, 0x007A) | 0x0070);
 676                 bcm43xx_set_all_gains(bcm, 0, 8, 0);
 677                 bcm43xx_radio_write16(bcm, 0x007A,
 678                                       bcm43xx_radio_read16(bcm, 0x007A) & 0x00F7);
 679                 if (phy->rev >= 2) {
 680                         bcm43xx_phy_write(bcm, 0x0811,
 681                                           (bcm43xx_phy_read(bcm, 0x0811) & 0xFFCF) | 0x0030);
 682                         bcm43xx_phy_write(bcm, 0x0812,
 683                                           (bcm43xx_phy_read(bcm, 0x0812) & 0xFFCF) | 0x0010);
 684                 }
 685                 bcm43xx_radio_write16(bcm, 0x007A,
 686                                       bcm43xx_radio_read16(bcm, 0x007A) | 0x0080);
 687                 udelay(20);
 688
 689                 nrssi0 = (s16)((bcm43xx_phy_read(bcm, 0x047F) >> 8) & 0x003F);
 690                 if (nrssi0 >= 0x0020)
 691                         nrssi0 -= 0x0040;
 692
 693                 bcm43xx_radio_write16(bcm, 0x007A,
 694                                       bcm43xx_radio_read16(bcm, 0x007A) & 0x007F);
 695                 if (phy->rev >= 2) {
 696                         bcm43xx_phy_write(bcm, 0x0003,
 697                                           (bcm43xx_phy_read(bcm, 0x0003)
 698                                            & 0xFF9F) | 0x0040);
 699                 }
 700
 701                 bcm43xx_write16(bcm, BCM43xx_MMIO_CHANNEL_EXT,
 702                                 bcm43xx_read16(bcm, BCM43xx_MMIO_CHANNEL_EXT)
 703                                 | 0x2000);
 704                 bcm43xx_radio_write16(bcm, 0x007A,
 705                                       bcm43xx_radio_read16(bcm, 0x007A) | 0x000F);
 706                 bcm43xx_phy_write(bcm, 0x0015, 0xF330);
 707                 if (phy->rev >= 2) {
 708                         bcm43xx_phy_write(bcm, 0x0812,
 709                                           (bcm43xx_phy_read(bcm, 0x0812) & 0xFFCF) | 0x0020);
 710                         bcm43xx_phy_write(bcm, 0x0811,
 711                                           (bcm43xx_phy_read(bcm, 0x0811) & 0xFFCF) | 0x0020);
 712                 }
 713
 714                 bcm43xx_set_all_gains(bcm, 3, 0, 1);
 715                 if (radio->revision == 8) {
 716                         bcm43xx_radio_write16(bcm, 0x0043, 0x001F);
 717                 } else {
 718                         tmp = bcm43xx_radio_read16(bcm, 0x0052) & 0xFF0F;
 719                         bcm43xx_radio_write16(bcm, 0x0052, tmp | 0x0060);
 720                         tmp = bcm43xx_radio_read16(bcm, 0x0043) & 0xFFF0;
 721                         bcm43xx_radio_write16(bcm, 0x0043, tmp | 0x0009);
 722                 }
 723                 bcm43xx_phy_write(bcm, 0x005A, 0x0480);
 724                 bcm43xx_phy_write(bcm, 0x0059, 0x0810);
 725                 bcm43xx_phy_write(bcm, 0x0058, 0x000D);
 726                 udelay(20);
 727                 nrssi1 = (s16)((bcm43xx_phy_read(bcm, 0x047F) >> 8) & 0x003F);
 728                 if (nrssi1 >= 0x0020)
 729                         nrssi1 -= 0x0040;
 730                 if (nrssi0 == nrssi1)
 731                         radio->nrssislope = 0x00010000;
 732                 else
 733                         radio->nrssislope = 0x00400000 / (nrssi0 - nrssi1);
 734                 if (nrssi0 >= -4) {
 735                         radio->nrssi[0] = nrssi1;
 736                         radio->nrssi[1] = nrssi0;
 737                 }
 738                 if (phy->rev >= 3) {
 739                         bcm43xx_phy_write(bcm, 0x002E, backup[10]);
 740                         bcm43xx_phy_write(bcm, 0x002F, backup[11]);
 741                         bcm43xx_phy_write(bcm, 0x080F, backup[12]);
 742                         bcm43xx_phy_write(bcm, BCM43xx_PHY_G_LO_CONTROL, backup[13]);
 743                 }
 744                 if (phy->rev >= 2) {
 745                         bcm43xx_phy_write(bcm, 0x0812,
 746                                           bcm43xx_phy_read(bcm, 0x0812) & 0xFFCF);
 747                         bcm43xx_phy_write(bcm, 0x0811,
 748                                           bcm43xx_phy_read(bcm, 0x0811) & 0xFFCF);
 749                 }
 750
 751                 bcm43xx_radio_write16(bcm, 0x007A, backup[0]);
 752                 bcm43xx_radio_write16(bcm, 0x0052, backup[1]);
 753                 bcm43xx_radio_write16(bcm, 0x0043, backup[2]);
 754                 bcm43xx_write16(bcm, 0x03E2, backup[7]);
 755                 bcm43xx_write16(bcm, 0x03E6, backup[8]);
 756                 bcm43xx_write16(bcm, BCM43xx_MMIO_CHANNEL_EXT, backup[9]);
 757                 bcm43xx_phy_write(bcm, 0x0015, backup[3]);
 758                 bcm43xx_phy_write(bcm, 0x005A, backup[4]);
 759                 bcm43xx_phy_write(bcm, 0x0059, backup[5]);
 760                 bcm43xx_phy_write(bcm, 0x0058, backup[6]);
 761                 bcm43xx_synth_pu_workaround(bcm, radio->channel);
 762                 bcm43xx_phy_write(bcm, 0x0802,
 763                                   bcm43xx_phy_read(bcm, 0x0802) | (0x0001 | 0x0002));
 764                 bcm43xx_set_original_gains(bcm);
 765                 bcm43xx_phy_write(bcm, BCM43xx_PHY_G_CRS,
 766                                   bcm43xx_phy_read(bcm, BCM43xx_PHY_G_CRS) | 0x8000);
 767                 if (phy->rev >= 3) {
 768                         bcm43xx_phy_write(bcm, 0x0801, backup[14]);
 769                         bcm43xx_phy_write(bcm, 0x0060, backup[15]);
 770                         bcm43xx_phy_write(bcm, 0x0014, backup[16]);
 771                         bcm43xx_phy_write(bcm, 0x0478, backup[17]);
 772                 }
 773                 bcm43xx_nrssi_mem_update(bcm);
 774                 bcm43xx_calc_nrssi_threshold(bcm);
 775                 break;
 776         default:
 777                 assert(0);
 778         }
 779 }
 780
 781 void bcm43xx_calc_nrssi_threshold(struct bcm43xx_private *bcm)
 782 {
 783         struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
 784         struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
 785         s16 threshold;
 786         s32 a, b;
 787         int tmp;
 788         s16 tmp16;
 789         u16 tmp_u16;
 790
 791         switch (phy->type) {
 792         case BCM43xx_PHYTYPE_B: {
 793                 int radiotype = 0;
 794
 795                 if (phy->rev < 2)
 796                         return;
 797                 if (radio->version != 0x2050)
 798                         return;
 799                 if (!(bcm->sprom.boardflags & BCM43xx_BFL_RSSI))
 800                         return;
 801
 802                 tmp = radio->revision;
 803                 if ((radio->manufact == 0x175 && tmp == 5) ||
 804                      (radio->manufact == 0x17F && (tmp == 3 || tmp == 4)))
 805                         radiotype = 1;
 806
 807                 if (radiotype == 1) {
 808                         threshold = radio->nrssi[1] - 5;
 809                 } else {
 810                         threshold = 40 * radio->nrssi[0];
 811                         threshold += 33 * (radio->nrssi[1] - radio->nrssi[0]);
 812                         threshold += 20;
 813                         threshold /= 10;
 814                 }
 815                 threshold = limit_value(threshold, 0, 0x3E);
 816                 bcm43xx_phy_read(bcm, 0x0020); /* dummy read */
 817                 bcm43xx_phy_write(bcm, 0x0020, (((u16)threshold) << 8) | 0x001C);
 818
 819                 if (radiotype == 1) {
 820                         bcm43xx_phy_write(bcm, 0x0087, 0x0E0D);
 821                         bcm43xx_phy_write(bcm, 0x0086, 0x0C0B);
 822                         bcm43xx_phy_write(bcm, 0x0085, 0x0A09);
 823                         bcm43xx_phy_write(bcm, 0x0084, 0x0808);
 824                         bcm43xx_phy_write(bcm, 0x0083, 0x0808);
 825                         bcm43xx_phy_write(bcm, 0x0082, 0x0604);
 826                         bcm43xx_phy_write(bcm, 0x0081, 0x0302);
 827                         bcm43xx_phy_write(bcm, 0x0080, 0x0100);
 828                 }
 829                 break;
 830         }
 831         case BCM43xx_PHYTYPE_G:
 832                 if (!phy->connected ||
 833                     !(bcm->sprom.boardflags & BCM43xx_BFL_RSSI)) {
 834                         tmp16 = bcm43xx_nrssi_hw_read(bcm, 0x20);
 835                         if (tmp16 >= 0x20)
 836                                 tmp16 -= 0x40;
 837                         if (tmp16 < 3) {
 838                                 bcm43xx_phy_write(bcm, 0x048A,
 839                                                   (bcm43xx_phy_read(bcm, 0x048A)
 840                                                    & 0xF000) | 0x09EB);
 841                         } else {
 842                                 bcm43xx_phy_write(bcm, 0x048A,
 843                                                   (bcm43xx_phy_read(bcm, 0x048A)
 844                                                    & 0xF000) | 0x0AED);
 845                         }
 846                 } else {
 847                         tmp = radio->interfmode;
 848                         if (tmp == BCM43xx_RADIO_INTERFMODE_NONWLAN) {
 849                                 a = -13;
 850                                 b = -17;
 851                         } else if (tmp == BCM43xx_RADIO_INTERFMODE_NONE &&
 852                                    !radio->aci_enable) {
 853                                 a = -13;
 854                                 b = -10;
 855                         } else {
 856                                 a = -8;
 857                                 b = -9;
 858                         }
 859                         a += 0x1B;
 860                         a *= radio->nrssi[1] - radio->nrssi[0];
 861                         a += radio->nrssi[0] * 0x40;
 862                         a /= 64;
 863                         b += 0x1B;
 864                         b *= radio->nrssi[1] - radio->nrssi[0];
 865                         b += radio->nrssi[0] * 0x40;
 866                         b /= 64;
 867
 868                         a = limit_value(a, -31, 31);
 869                         b = limit_value(b, -31, 31);
 870
 871                         tmp_u16 = bcm43xx_phy_read(bcm, 0x048A) & 0xF000;
 872                         tmp_u16 |= ((u32)a & 0x003F);
 873                         tmp_u16 |= (((u32)b & 0x003F) << 6);
 874                         bcm43xx_phy_write(bcm, 0x048A, tmp_u16);
 875                 }
 876                 break;
 877         default:
 878                 assert(0);
 879         }
 880 }
 881
 882 /* Stack implementation to save/restore values from the
 883  * interference mitigation code.
 884  * It is save to restore values in random order.
 885  */
 886 static void _stack_save(u32 *_stackptr, size_t *stackidx,
 887                         u8 id, u16 offset, u16 value)
 888 {
 889         u32 *stackptr = &(_stackptr[*stackidx]);
 890
 891         assert((offset & 0xF000) == 0x0000);
 892         assert((id & 0xF0) == 0x00);
 893         *stackptr = offset;
 894         *stackptr |= ((u32)id) << 12;
 895         *stackptr |= ((u32)value) << 16;
 896         (*stackidx)++;
 897         assert(*stackidx < BCM43xx_INTERFSTACK_SIZE);
 898 }
 899
 900 static u16 _stack_restore(u32 *stackptr,
 901                           u8 id, u16 offset)
 902 {
 903         size_t i;
 904
 905         assert((offset & 0xF000) == 0x0000);
 906         assert((id & 0xF0) == 0x00);
 907         for (i = 0; i < BCM43xx_INTERFSTACK_SIZE; i++, stackptr++) {
 908                 if ((*stackptr & 0x00000FFF) != offset)
 909                         continue;
 910                 if (((*stackptr & 0x0000F000) >> 12) != id)
 911                         continue;
 912                 return ((*stackptr & 0xFFFF0000) >> 16);
 913         }
 914         assert(0);
 915
 916         return 0;
 917 }
 918
 919 #define phy_stacksave(offset)                                   \
 920         do {                                                    \
 921                 _stack_save(stack, &stackidx, 0x1, (offset),    \
 922                             bcm43xx_phy_read(bcm, (offset)));   \
 923         } while (0)
 924 #define phy_stackrestore(offset)                                \
 925         do {                                                    \
 926                 bcm43xx_phy_write(bcm, (offset),                \
 927                                   _stack_restore(stack, 0x1,    \
 928                                                  (offset)));    \
 929         } while (0)
 930 #define radio_stacksave(offset)                                         \
 931         do {                                                            \
 932                 _stack_save(stack, &stackidx, 0x2, (offset),            \
 933                             bcm43xx_radio_read16(bcm, (offset)));       \
 934         } while (0)
 935 #define radio_stackrestore(offset)                                      \
 936         do {                                                            \
 937                 bcm43xx_radio_write16(bcm, (offset),                    \
 938                                       _stack_restore(stack, 0x2,        \
 939                                                      (offset)));        \
 940         } while (0)
 941 #define ilt_stacksave(offset)                                   \
 942         do {                                                    \
 943                 _stack_save(stack, &stackidx, 0x3, (offset),    \
 944                             bcm43xx_ilt_read(bcm, (offset)));   \
 945         } while (0)
 946 #define ilt_stackrestore(offset)                                \
 947         do {                                                    \
 948                 bcm43xx_ilt_write(bcm, (offset),                \
 949                                   _stack_restore(stack, 0x3,    \
 950                                                  (offset)));    \
 951         } while (0)
 952
 953 static void
 954 bcm43xx_radio_interference_mitigation_enable(struct bcm43xx_private *bcm,
 955                                              int mode)
 956 {
 957         struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
 958         struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
 959         u16 tmp, flipped;
 960         u32 tmp32;
 961         size_t stackidx = 0;
 962         u32 *stack = radio->interfstack;
 963
 964         switch (mode) {
 965         case BCM43xx_RADIO_INTERFMODE_NONWLAN:
 966                 if (phy->rev != 1) {
 967                         bcm43xx_phy_write(bcm, 0x042B,
 968                                           bcm43xx_phy_read(bcm, 0x042B) | 0x0800);
 969                         bcm43xx_phy_write(bcm, BCM43xx_PHY_G_CRS,
 970                                           bcm43xx_phy_read(bcm, BCM43xx_PHY_G_CRS) & ~0x4000);
 971                         break;
 972                 }
 973                 radio_stacksave(0x0078);
 974                 tmp = (bcm43xx_radio_read16(bcm, 0x0078) & 0x001E);
 975                 flipped = flip_4bit(tmp);
 976                 if (flipped < 10 && flipped >= 8)
 977                         flipped = 7;
 978                 else if (flipped >= 10)
 979                         flipped -= 3;
 980                 flipped = flip_4bit(flipped);
 981                 flipped = (flipped << 1) | 0x0020;
 982                 bcm43xx_radio_write16(bcm, 0x0078, flipped);
 983
 984                 bcm43xx_calc_nrssi_threshold(bcm);
 985
 986                 phy_stacksave(0x0406);
 987                 bcm43xx_phy_write(bcm, 0x0406, 0x7E28);
 988
 989                 bcm43xx_phy_write(bcm, 0x042B,
 990                                   bcm43xx_phy_read(bcm, 0x042B) | 0x0800);
 991                 bcm43xx_phy_write(bcm, BCM43xx_PHY_RADIO_BITFIELD,
 992                                   bcm43xx_phy_read(bcm, BCM43xx_PHY_RADIO_BITFIELD) | 0x1000);
 993
 994                 phy_stacksave(0x04A0);
 995                 bcm43xx_phy_write(bcm, 0x04A0,
 996                                   (bcm43xx_phy_read(bcm, 0x04A0) & 0xC0C0) | 0x0008);
 997                 phy_stacksave(0x04A1);
 998                 bcm43xx_phy_write(bcm, 0x04A1,
 999                                   (bcm43xx_phy_read(bcm, 0x04A1) & 0xC0C0) | 0x0605);
1000                 phy_stacksave(0x04A2);
1001                 bcm43xx_phy_write(bcm, 0x04A2,
1002                                   (bcm43xx_phy_read(bcm, 0x04A2) & 0xC0C0) | 0x0204);
1003                 phy_stacksave(0x04A8);
1004                 bcm43xx_phy_write(bcm, 0x04A8,
1005                                   (bcm43xx_phy_read(bcm, 0x04A8) & 0xC0C0) | 0x0803);
1006                 phy_stacksave(0x04AB);
1007                 bcm43xx_phy_write(bcm, 0x04AB,
1008                                   (bcm43xx_phy_read(bcm, 0x04AB) & 0xC0C0) | 0x0605);
1009
1010                 phy_stacksave(0x04A7);
1011                 bcm43xx_phy_write(bcm, 0x04A7, 0x0002);
1012                 phy_stacksave(0x04A3);
1013                 bcm43xx_phy_write(bcm, 0x04A3, 0x287A);
1014                 phy_stacksave(0x04A9);
1015                 bcm43xx_phy_write(bcm, 0x04A9, 0x2027);
1016                 phy_stacksave(0x0493);
1017                 bcm43xx_phy_write(bcm, 0x0493, 0x32F5);
1018                 phy_stacksave(0x04AA);
1019                 bcm43xx_phy_write(bcm, 0x04AA, 0x2027);
1020                 phy_stacksave(0x04AC);
1021                 bcm43xx_phy_write(bcm, 0x04AC, 0x32F5);
1022                 break;
1023         case BCM43xx_RADIO_INTERFMODE_MANUALWLAN:
1024                 if (bcm43xx_phy_read(bcm, 0x0033) & 0x0800)
1025                         break;
1026
1027                 radio->aci_enable = 1;
1028
1029                 phy_stacksave(BCM43xx_PHY_RADIO_BITFIELD);
1030                 phy_stacksave(BCM43xx_PHY_G_CRS);
1031                 if (phy->rev < 2) {
1032                         phy_stacksave(0x0406);
1033                 } else {
1034                         phy_stacksave(0x04C0);
1035                         phy_stacksave(0x04C1);
1036                 }
1037                 phy_stacksave(0x0033);
1038                 phy_stacksave(0x04A7);
1039                 phy_stacksave(0x04A3);
1040                 phy_stacksave(0x04A9);
1041                 phy_stacksave(0x04AA);
1042                 phy_stacksave(0x04AC);
1043                 phy_stacksave(0x0493);
1044                 phy_stacksave(0x04A1);
1045                 phy_stacksave(0x04A0);
1046                 phy_stacksave(0x04A2);
1047                 phy_stacksave(0x048A);
1048                 phy_stacksave(0x04A8);
1049                 phy_stacksave(0x04AB);
1050                 if (phy->rev == 2) {
1051                         phy_stacksave(0x04AD);
1052                         phy_stacksave(0x04AE);
1053                 } else if (phy->rev >= 3) {
1054                         phy_stacksave(0x04AD);
1055                         phy_stacksave(0x0415);
1056                         phy_stacksave(0x0416);
1057                         phy_stacksave(0x0417);
1058                         ilt_stacksave(0x1A00 + 0x2);
1059                         ilt_stacksave(0x1A00 + 0x3);
1060                 }
1061                 phy_stacksave(0x042B);
1062                 phy_stacksave(0x048C);
1063
1064                 bcm43xx_phy_write(bcm, BCM43xx_PHY_RADIO_BITFIELD,
1065                                   bcm43xx_phy_read(bcm, BCM43xx_PHY_RADIO_BITFIELD)
1066                                   & ~0x1000);
1067                 bcm43xx_phy_write(bcm, BCM43xx_PHY_G_CRS,
1068                                   (bcm43xx_phy_read(bcm, BCM43xx_PHY_G_CRS)
1069                                    & 0xFFFC) | 0x0002);
1070
1071                 bcm43xx_phy_write(bcm, 0x0033, 0x0800);
1072                 bcm43xx_phy_write(bcm, 0x04A3, 0x2027);
1073                 bcm43xx_phy_write(bcm, 0x04A9, 0x1CA8);
1074                 bcm43xx_phy_write(bcm, 0x0493, 0x287A);
1075                 bcm43xx_phy_write(bcm, 0x04AA, 0x1CA8);
1076                 bcm43xx_phy_write(bcm, 0x04AC, 0x287A);
1077
1078                 bcm43xx_phy_write(bcm, 0x04A0,
1079                                   (bcm43xx_phy_read(bcm, 0x04A0)
1080                                    & 0xFFC0) | 0x001A);
1081                 bcm43xx_phy_write(bcm, 0x04A7, 0x000D);
1082
1083                 if (phy->rev < 2) {
1084                         bcm43xx_phy_write(bcm, 0x0406, 0xFF0D);
1085                 } else if (phy->rev == 2) {
1086                         bcm43xx_phy_write(bcm, 0x04C0, 0xFFFF);
1087                         bcm43xx_phy_write(bcm, 0x04C1, 0x00A9);
1088                 } else {
1089                         bcm43xx_phy_write(bcm, 0x04C0, 0x00C1);
1090                         bcm43xx_phy_write(bcm, 0x04C1, 0x0059);
1091                 }
1092
1093                 bcm43xx_phy_write(bcm, 0x04A1,
1094                                   (bcm43xx_phy_read(bcm, 0x04A1)
1095                                    & 0xC0FF) | 0x1800);
1096                 bcm43xx_phy_write(bcm, 0x04A1,
1097                                   (bcm43xx_phy_read(bcm, 0x04A1)
1098                                    & 0xFFC0) | 0x0015);
1099                 bcm43xx_phy_write(bcm, 0x04A8,
1100                                   (bcm43xx_phy_read(bcm, 0x04A8)
1101                                    & 0xCFFF) | 0x1000);
1102                 bcm43xx_phy_write(bcm, 0x04A8,
1103                                   (bcm43xx_phy_read(bcm, 0x04A8)
1104                                    & 0xF0FF) | 0x0A00);
1105                 bcm43xx_phy_write(bcm, 0x04AB,
1106                                   (bcm43xx_phy_read(bcm, 0x04AB)
1107                                    & 0xCFFF) | 0x1000);
1108                 bcm43xx_phy_write(bcm, 0x04AB,
1109                                   (bcm43xx_phy_read(bcm, 0x04AB)
1110                                    & 0xF0FF) | 0x0800);
1111                 bcm43xx_phy_write(bcm, 0x04AB,
1112                                   (bcm43xx_phy_read(bcm, 0x04AB)
1113                                    & 0xFFCF) | 0x0010);
1114                 bcm43xx_phy_write(bcm, 0x04AB,
1115                                   (bcm43xx_phy_read(bcm, 0x04AB)
1116                                    & 0xFFF0) | 0x0005);
1117                 bcm43xx_phy_write(bcm, 0x04A8,
1118                                   (bcm43xx_phy_read(bcm, 0x04A8)
1119                                    & 0xFFCF) | 0x0010);
1120                 bcm43xx_phy_write(bcm, 0x04A8,
1121                                   (bcm43xx_phy_read(bcm, 0x04A8)
1122                                    & 0xFFF0) | 0x0006);
1123                 bcm43xx_phy_write(bcm, 0x04A2,
1124                                   (bcm43xx_phy_read(bcm, 0x04A2)
1125                                    & 0xF0FF) | 0x0800);
1126                 bcm43xx_phy_write(bcm, 0x04A0,
1127                                   (bcm43xx_phy_read(bcm, 0x04A0)
1128                                    & 0xF0FF) | 0x0500);
1129                 bcm43xx_phy_write(bcm, 0x04A2,
1130                                   (bcm43xx_phy_read(bcm, 0x04A2)
1131                                    & 0xFFF0) | 0x000B);
1132
1133                 if (phy->rev >= 3) {
1134                         bcm43xx_phy_write(bcm, 0x048A,
1135                                           bcm43xx_phy_read(bcm, 0x048A)
1136                                           & ~0x8000);
1137                         bcm43xx_phy_write(bcm, 0x0415,
1138                                           (bcm43xx_phy_read(bcm, 0x0415)
1139                                            & 0x8000) | 0x36D8);
1140                         bcm43xx_phy_write(bcm, 0x0416,
1141                                           (bcm43xx_phy_read(bcm, 0x0416)
1142                                            & 0x8000) | 0x36D8);
1143                         bcm43xx_phy_write(bcm, 0x0417,
1144                                           (bcm43xx_phy_read(bcm, 0x0417)
1145                                            & 0xFE00) | 0x016D);
1146                 } else {
1147                         bcm43xx_phy_write(bcm, 0x048A,
1148                                           bcm43xx_phy_read(bcm, 0x048A)
1149                                           | 0x1000);
1150                         bcm43xx_phy_write(bcm, 0x048A,
1151                                           (bcm43xx_phy_read(bcm, 0x048A)
1152                                            & 0x9FFF) | 0x2000);
1153                         tmp32 = bcm43xx_shm_read32(bcm, BCM43xx_SHM_SHARED,
1154                                                    BCM43xx_UCODEFLAGS_OFFSET);
1155                         if (!(tmp32 & 0x800)) {
1156                                 tmp32 |= 0x800;
1157                                 bcm43xx_shm_write32(bcm, BCM43xx_SHM_SHARED,
1158                                                     BCM43xx_UCODEFLAGS_OFFSET,
1159                                                     tmp32);
1160                         }
1161                 }
1162                 if (phy->rev >= 2) {
1163                         bcm43xx_phy_write(bcm, 0x042B,
1164                                           bcm43xx_phy_read(bcm, 0x042B)
1165                                           | 0x0800);
1166                 }
1167                 bcm43xx_phy_write(bcm, 0x048C,
1168                                   (bcm43xx_phy_read(bcm, 0x048C)
1169                                    & 0xF0FF) | 0x0200);
1170                 if (phy->rev == 2) {
1171                         bcm43xx_phy_write(bcm, 0x04AE,
1172                                           (bcm43xx_phy_read(bcm, 0x04AE)
1173                                            & 0xFF00) | 0x007F);
1174                         bcm43xx_phy_write(bcm, 0x04AD,
1175                                           (bcm43xx_phy_read(bcm, 0x04AD)
1176                                            & 0x00FF) | 0x1300);
1177                 } else if (phy->rev >= 6) {
1178                         bcm43xx_ilt_write(bcm, 0x1A00 + 0x3, 0x007F);
1179                         bcm43xx_ilt_write(bcm, 0x1A00 + 0x2, 0x007F);
1180                         bcm43xx_phy_write(bcm, 0x04AD,
1181                                           bcm43xx_phy_read(bcm, 0x04AD)
1182                                           & 0x00FF);
1183                 }
1184                 bcm43xx_calc_nrssi_slope(bcm);
1185                 break;
1186         default:
1187                 assert(0);
1188         }
1189 }
1190
1191 static void
1192 bcm43xx_radio_interference_mitigation_disable(struct bcm43xx_private *bcm,
1193                                               int mode)
1194 {
1195         struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
1196         struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
1197         u32 tmp32;
1198         u32 *stack = radio->interfstack;
1199
1200         switch (mode) {
1201         case BCM43xx_RADIO_INTERFMODE_NONWLAN:
1202                 if (phy->rev != 1) {
1203                         bcm43xx_phy_write(bcm, 0x042B,
1204                                           bcm43xx_phy_read(bcm, 0x042B) & ~0x0800);
1205                         bcm43xx_phy_write(bcm, BCM43xx_PHY_G_CRS,
1206                                           bcm43xx_phy_read(bcm, BCM43xx_PHY_G_CRS) | 0x4000);
1207                         break;
1208                 }
1209                 phy_stackrestore(0x0078);
1210                 bcm43xx_calc_nrssi_threshold(bcm);
1211                 phy_stackrestore(0x0406);
1212                 bcm43xx_phy_write(bcm, 0x042B,
1213                                   bcm43xx_phy_read(bcm, 0x042B) & ~0x0800);
1214                 if (!bcm->bad_frames_preempt) {
1215                         bcm43xx_phy_write(bcm, BCM43xx_PHY_RADIO_BITFIELD,
1216                                           bcm43xx_phy_read(bcm, BCM43xx_PHY_RADIO_BITFIELD)
1217                                           & ~(1 << 11));
1218                 }
1219                 bcm43xx_phy_write(bcm, BCM43xx_PHY_G_CRS,
1220                                   bcm43xx_phy_read(bcm, BCM43xx_PHY_G_CRS) | 0x4000);
1221                 phy_stackrestore(0x04A0);
1222                 phy_stackrestore(0x04A1);
1223                 phy_stackrestore(0x04A2);
1224                 phy_stackrestore(0x04A8);
1225                 phy_stackrestore(0x04AB);
1226                 phy_stackrestore(0x04A7);
1227                 phy_stackrestore(0x04A3);
1228                 phy_stackrestore(0x04A9);
1229                 phy_stackrestore(0x0493);
1230                 phy_stackrestore(0x04AA);
1231                 phy_stackrestore(0x04AC);
1232                 break;
1233         case BCM43xx_RADIO_INTERFMODE_MANUALWLAN:
1234                 if (!(bcm43xx_phy_read(bcm, 0x0033) & 0x0800))
1235                         break;
1236
1237                 radio->aci_enable = 0;
1238
1239                 phy_stackrestore(BCM43xx_PHY_RADIO_BITFIELD);
1240                 phy_stackrestore(BCM43xx_PHY_G_CRS);
1241                 phy_stackrestore(0x0033);
1242                 phy_stackrestore(0x04A3);
1243                 phy_stackrestore(0x04A9);
1244                 phy_stackrestore(0x0493);
1245                 phy_stackrestore(0x04AA);
1246                 phy_stackrestore(0x04AC);
1247                 phy_stackrestore(0x04A0);
1248                 phy_stackrestore(0x04A7);
1249                 if (phy->rev >= 2) {
1250                         phy_stackrestore(0x04C0);
1251                         phy_stackrestore(0x04C1);
1252                 } else
1253                         phy_stackrestore(0x0406);
1254                 phy_stackrestore(0x04A1);
1255                 phy_stackrestore(0x04AB);
1256                 phy_stackrestore(0x04A8);
1257                 if (phy->rev == 2) {
1258                         phy_stackrestore(0x04AD);
1259                         phy_stackrestore(0x04AE);
1260                 } else if (phy->rev >= 3) {
1261                         phy_stackrestore(0x04AD);
1262                         phy_stackrestore(0x0415);
1263                         phy_stackrestore(0x0416);
1264                         phy_stackrestore(0x0417);
1265                         ilt_stackrestore(0x1A00 + 0x2);
1266                         ilt_stackrestore(0x1A00 + 0x3);
1267                 }
1268                 phy_stackrestore(0x04A2);
1269                 phy_stackrestore(0x04A8);
1270                 phy_stackrestore(0x042B);
1271                 phy_stackrestore(0x048C);
1272                 tmp32 = bcm43xx_shm_read32(bcm, BCM43xx_SHM_SHARED,
1273                                            BCM43xx_UCODEFLAGS_OFFSET);
1274                 if (tmp32 & 0x800) {
1275                         tmp32 &= ~0x800;
1276                         bcm43xx_shm_write32(bcm, BCM43xx_SHM_SHARED,
1277                                             BCM43xx_UCODEFLAGS_OFFSET,
1278                                             tmp32);
1279                 }
1280                 bcm43xx_calc_nrssi_slope(bcm);
1281                 break;
1282         default:
1283                 assert(0);
1284         }
1285 }
1286
1287 #undef phy_stacksave
1288 #undef phy_stackrestore
1289 #undef radio_stacksave
1290 #undef radio_stackrestore
1291 #undef ilt_stacksave
1292 #undef ilt_stackrestore
1293
1294 int bcm43xx_radio_set_interference_mitigation(struct bcm43xx_private *bcm,
1295                                               int mode)
1296 {
1297         struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
1298         struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
1299         int currentmode;
1300
1301         if ((phy->type != BCM43xx_PHYTYPE_G) ||
1302             (phy->rev == 0) ||
1303             (!phy->connected))
1304                 return -ENODEV;
1305
1306         radio->aci_wlan_automatic = 0;
1307         switch (mode) {
1308         case BCM43xx_RADIO_INTERFMODE_AUTOWLAN:
1309                 radio->aci_wlan_automatic = 1;
1310                 if (radio->aci_enable)
1311                         mode = BCM43xx_RADIO_INTERFMODE_MANUALWLAN;
1312                 else
1313                         mode = BCM43xx_RADIO_INTERFMODE_NONE;
1314                 break;
1315         case BCM43xx_RADIO_INTERFMODE_NONE:
1316         case BCM43xx_RADIO_INTERFMODE_NONWLAN:
1317         case BCM43xx_RADIO_INTERFMODE_MANUALWLAN:
1318                 break;
1319         default:
1320                 return -EINVAL;
1321         }
1322
1323         currentmode = radio->interfmode;
1324         if (currentmode == mode)
1325                 return 0;
1326         if (currentmode != BCM43xx_RADIO_INTERFMODE_NONE)
1327                 bcm43xx_radio_interference_mitigation_disable(bcm, currentmode);
1328
1329         if (mode == BCM43xx_RADIO_INTERFMODE_NONE) {
1330                 radio->aci_enable = 0;
1331                 radio->aci_hw_rssi = 0;
1332         } else
1333                 bcm43xx_radio_interference_mitigation_enable(bcm, mode);
1334         radio->interfmode = mode;
1335
1336         return 0;
1337 }
1338
1339 u16 bcm43xx_radio_calibrationvalue(struct bcm43xx_private *bcm)
1340 {
1341         u16 reg, index, ret;
1342
1343         reg = bcm43xx_radio_read16(bcm, 0x0060);
1344         index = (reg & 0x001E) >> 1;
1345         ret = rcc_table[index] << 1;
1346         ret |= (reg & 0x0001);
1347         ret |= 0x0020;
1348
1349         return ret;
1350 }
1351
1352 u16 bcm43xx_radio_init2050(struct bcm43xx_private *bcm)
1353 {
1354         struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
1355         struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
1356         u16 backup[19] = { 0 };
1357         u16 ret;
1358         u16 i, j;
1359         u32 tmp1 = 0, tmp2 = 0;
1360
1361         backup[0] = bcm43xx_radio_read16(bcm, 0x0043);
1362         backup[14] = bcm43xx_radio_read16(bcm, 0x0051);
1363         backup[15] = bcm43xx_radio_read16(bcm, 0x0052);
1364         backup[1] = bcm43xx_phy_read(bcm, 0x0015);
1365         backup[16] = bcm43xx_phy_read(bcm, 0x005A);
1366         backup[17] = bcm43xx_phy_read(bcm, 0x0059);
1367         backup[18] = bcm43xx_phy_read(bcm, 0x0058);
1368         if (phy->type == BCM43xx_PHYTYPE_B) {
1369                 backup[2] = bcm43xx_phy_read(bcm, 0x0030);
1370                 backup[3] = bcm43xx_read16(bcm, 0x03EC);
1371                 bcm43xx_phy_write(bcm, 0x0030, 0x00FF);
1372                 bcm43xx_write16(bcm, 0x03EC, 0x3F3F);
1373         } else {
1374                 if (phy->connected) {
1375                         backup[4] = bcm43xx_phy_read(bcm, 0x0811);
1376                         backup[5] = bcm43xx_phy_read(bcm, 0x0812);
1377                         backup[6] = bcm43xx_phy_read(bcm, 0x0814);
1378                         backup[7] = bcm43xx_phy_read(bcm, 0x0815);
1379                         backup[8] = bcm43xx_phy_read(bcm, BCM43xx_PHY_G_CRS);
1380                         backup[9] = bcm43xx_phy_read(bcm, 0x0802);
1381                         bcm43xx_phy_write(bcm, 0x0814,
1382                                           (bcm43xx_phy_read(bcm, 0x0814) | 0x0003));
1383                         bcm43xx_phy_write(bcm, 0x0815,
1384                                           (bcm43xx_phy_read(bcm, 0x0815) & 0xFFFC));
1385                         bcm43xx_phy_write(bcm, BCM43xx_PHY_G_CRS,
1386                                           (bcm43xx_phy_read(bcm, BCM43xx_PHY_G_CRS) & 0x7FFF));
1387                         bcm43xx_phy_write(bcm, 0x0802,
1388                                           (bcm43xx_phy_read(bcm, 0x0802) & 0xFFFC));
1389                         bcm43xx_phy_write(bcm, 0x0811, 0x01B3);
1390                         bcm43xx_phy_write(bcm, 0x0812, 0x0FB2);
1391                 }
1392                 bcm43xx_write16(bcm, BCM43xx_MMIO_PHY_RADIO,
1393                                 (bcm43xx_read16(bcm, BCM43xx_MMIO_PHY_RADIO) | 0x8000));
1394         }
1395         backup[10] = bcm43xx_phy_read(bcm, 0x0035);
1396         bcm43xx_phy_write(bcm, 0x0035,
1397                           (bcm43xx_phy_read(bcm, 0x0035) & 0xFF7F));
1398         backup[11] = bcm43xx_read16(bcm, 0x03E6);
1399         backup[12] = bcm43xx_read16(bcm, BCM43xx_MMIO_CHANNEL_EXT);
1400
1401         // Initialization
1402         if (phy->version == 0) {
1403                 bcm43xx_write16(bcm, 0x03E6, 0x0122);
1404         } else {
1405                 if (phy->version >= 2)
1406                         bcm43xx_write16(bcm, 0x03E6, 0x0040);
1407                 bcm43xx_write16(bcm, BCM43xx_MMIO_CHANNEL_EXT,
1408                                 (bcm43xx_read16(bcm, BCM43xx_MMIO_CHANNEL_EXT) | 0x2000));
1409         }
1410
1411         ret = bcm43xx_radio_calibrationvalue(bcm);
1412
1413         if (phy->type == BCM43xx_PHYTYPE_B)
1414                 bcm43xx_radio_write16(bcm, 0x0078, 0x0003);
1415
1416         bcm43xx_phy_write(bcm, 0x0015, 0xBFAF);
1417         bcm43xx_phy_write(bcm, 0x002B, 0x1403);
1418         if (phy->connected)
1419                 bcm43xx_phy_write(bcm, 0x0812, 0x00B2);
1420         bcm43xx_phy_write(bcm, 0x0015, 0xBFA0);
1421         bcm43xx_radio_write16(bcm, 0x0051,
1422                               (bcm43xx_radio_read16(bcm, 0x0051) | 0x0004));
1423         bcm43xx_radio_write16(bcm, 0x0052, 0x0000);
1424         bcm43xx_radio_write16(bcm, 0x0043,
1425                               bcm43xx_radio_read16(bcm, 0x0043) | 0x0009);
1426         bcm43xx_phy_write(bcm, 0x0058, 0x0000);
1427
1428         for (i = 0; i < 16; i++) {
1429                 bcm43xx_phy_write(bcm, 0x005A, 0x0480);
1430                 bcm43xx_phy_write(bcm, 0x0059, 0xC810);
1431                 bcm43xx_phy_write(bcm, 0x0058, 0x000D);
1432                 if (phy->connected)
1433                         bcm43xx_phy_write(bcm, 0x0812, 0x30B2);
1434                 bcm43xx_phy_write(bcm, 0x0015, 0xAFB0);
1435                 udelay(10);
1436                 if (phy->connected)
1437                         bcm43xx_phy_write(bcm, 0x0812, 0x30B2);
1438                 bcm43xx_phy_write(bcm, 0x0015, 0xEFB0);
1439                 udelay(10);
1440                 if (phy->connected)
1441                         bcm43xx_phy_write(bcm, 0x0812, 0x30B2);
1442                 bcm43xx_phy_write(bcm, 0x0015, 0xFFF0);
1443                 udelay(10);
1444                 tmp1 += bcm43xx_phy_read(bcm, 0x002D);
1445                 bcm43xx_phy_write(bcm, 0x0058, 0x0000);
1446                 if (phy->connected)
1447                         bcm43xx_phy_write(bcm, 0x0812, 0x30B2);
1448                 bcm43xx_phy_write(bcm, 0x0015, 0xAFB0);
1449         }
1450
1451         tmp1++;
1452         tmp1 >>= 9;
1453         udelay(10);
1454         bcm43xx_phy_write(bcm, 0x0058, 0x0000);
1455
1456         for (i = 0; i < 16; i++) {
1457                 bcm43xx_radio_write16(bcm, 0x0078, (flip_4bit(i) << 1) | 0x0020);
1458                 backup[13] = bcm43xx_radio_read16(bcm, 0x0078);
1459                 udelay(10);
1460                 for (j = 0; j < 16; j++) {
1461                         bcm43xx_phy_write(bcm, 0x005A, 0x0D80);
1462                         bcm43xx_phy_write(bcm, 0x0059, 0xC810);
1463                         bcm43xx_phy_write(bcm, 0x0058, 0x000D);
1464                         if (phy->connected)
1465                                 bcm43xx_phy_write(bcm, 0x0812, 0x30B2);
1466                         bcm43xx_phy_write(bcm, 0x0015, 0xAFB0);
1467                         udelay(10);
1468                         if (phy->connected)
1469                                 bcm43xx_phy_write(bcm, 0x0812, 0x30B2);
1470                         bcm43xx_phy_write(bcm, 0x0015, 0xEFB0);
1471                         udelay(10);
1472                         if (phy->connected)
1473                                 bcm43xx_phy_write(bcm, 0x0812, 0x30B3); /* 0x30B3 is not a typo */
1474                         bcm43xx_phy_write(bcm, 0x0015, 0xFFF0);
1475                         udelay(10);
1476                         tmp2 += bcm43xx_phy_read(bcm, 0x002D);
1477                         bcm43xx_phy_write(bcm, 0x0058, 0x0000);
1478                         if (phy->connected)
1479                                 bcm43xx_phy_write(bcm, 0x0812, 0x30B2);
1480                         bcm43xx_phy_write(bcm, 0x0015, 0xAFB0);
1481                 }
1482                 tmp2++;
1483                 tmp2 >>= 8;
1484                 if (tmp1 < tmp2)
1485                         break;
1486         }
1487
1488         /* Restore the registers */
1489         bcm43xx_phy_write(bcm, 0x0015, backup[1]);
1490         bcm43xx_radio_write16(bcm, 0x0051, backup[14]);
1491         bcm43xx_radio_write16(bcm, 0x0052, backup[15]);
1492         bcm43xx_radio_write16(bcm, 0x0043, backup[0]);
1493         bcm43xx_phy_write(bcm, 0x005A, backup[16]);
1494         bcm43xx_phy_write(bcm, 0x0059, backup[17]);
1495         bcm43xx_phy_write(bcm, 0x0058, backup[18]);
1496         bcm43xx_write16(bcm, 0x03E6, backup[11]);
1497         if (phy->version != 0)
1498                 bcm43xx_write16(bcm, BCM43xx_MMIO_CHANNEL_EXT, backup[12]);
1499         bcm43xx_phy_write(bcm, 0x0035, backup[10]);
1500         bcm43xx_radio_selectchannel(bcm, radio->channel, 1);
1501         if (phy->type == BCM43xx_PHYTYPE_B) {
1502                 bcm43xx_phy_write(bcm, 0x0030, backup[2]);
1503                 bcm43xx_write16(bcm, 0x03EC, backup[3]);
1504         } else {
1505                 bcm43xx_write16(bcm, BCM43xx_MMIO_PHY_RADIO,
1506                                 (bcm43xx_read16(bcm, BCM43xx_MMIO_PHY_RADIO) & 0x7FFF));
1507                 if (phy->connected) {
1508                         bcm43xx_phy_write(bcm, 0x0811, backup[4]);
1509                         bcm43xx_phy_write(bcm, 0x0812, backup[5]);
1510                         bcm43xx_phy_write(bcm, 0x0814, backup[6]);
1511                         bcm43xx_phy_write(bcm, 0x0815, backup[7]);
1512                         bcm43xx_phy_write(bcm, BCM43xx_PHY_G_CRS, backup[8]);
1513                         bcm43xx_phy_write(bcm, 0x0802, backup[9]);
1514                 }
1515         }
1516         if (i >= 15)
1517                 ret = backup[13];
1518
1519         return ret;
1520 }
1521
1522 void bcm43xx_radio_init2060(struct bcm43xx_private *bcm)
1523 {
1524         int err;
1525
1526         bcm43xx_radio_write16(bcm, 0x0004, 0x00C0);
1527         bcm43xx_radio_write16(bcm, 0x0005, 0x0008);
1528         bcm43xx_radio_write16(bcm, 0x0009, 0x0040);
1529         bcm43xx_radio_write16(bcm, 0x0005, 0x00AA);
1530         bcm43xx_radio_write16(bcm, 0x0032, 0x008F);
1531         bcm43xx_radio_write16(bcm, 0x0006, 0x008F);
1532         bcm43xx_radio_write16(bcm, 0x0034, 0x008F);
1533         bcm43xx_radio_write16(bcm, 0x002C, 0x0007);
1534         bcm43xx_radio_write16(bcm, 0x0082, 0x0080);
1535         bcm43xx_radio_write16(bcm, 0x0080, 0x0000);
1536         bcm43xx_radio_write16(bcm, 0x003F, 0x00DA);
1537         bcm43xx_radio_write16(bcm, 0x0005, bcm43xx_radio_read16(bcm, 0x0005) & ~0x0008);
1538         bcm43xx_radio_write16(bcm, 0x0081, bcm43xx_radio_read16(bcm, 0x0081) & ~0x0010);
1539         bcm43xx_radio_write16(bcm, 0x0081, bcm43xx_radio_read16(bcm, 0x0081) & ~0x0020);
1540         bcm43xx_radio_write16(bcm, 0x0081, bcm43xx_radio_read16(bcm, 0x0081) & ~0x0020);
1541         udelay(400);
1542
1543         bcm43xx_radio_write16(bcm, 0x0081, (bcm43xx_radio_read16(bcm, 0x0081) & ~0x0020) | 0x0010);
1544         udelay(400);
1545
1546         bcm43xx_radio_write16(bcm, 0x0005, (bcm43xx_radio_read16(bcm, 0x0005) & ~0x0008) | 0x0008);
1547         bcm43xx_radio_write16(bcm, 0x0085, bcm43xx_radio_read16(bcm, 0x0085) & ~0x0010);
1548         bcm43xx_radio_write16(bcm, 0x0005, bcm43xx_radio_read16(bcm, 0x0005) & ~0x0008);
1549         bcm43xx_radio_write16(bcm, 0x0081, bcm43xx_radio_read16(bcm, 0x0081) & ~0x0040);
1550         bcm43xx_radio_write16(bcm, 0x0081, (bcm43xx_radio_read16(bcm, 0x0081) & ~0x0040) | 0x0040);
1551         bcm43xx_radio_write16(bcm, 0x0005, (bcm43xx_radio_read16(bcm, 0x0081) & ~0x0008) | 0x0008);
1552         bcm43xx_phy_write(bcm, 0x0063, 0xDDC6);
1553         bcm43xx_phy_write(bcm, 0x0069, 0x07BE);
1554         bcm43xx_phy_write(bcm, 0x006A, 0x0000);
1555
1556         err = bcm43xx_radio_selectchannel(bcm, BCM43xx_RADIO_DEFAULT_CHANNEL_A, 0);
1557         assert(err == 0);
1558         udelay(1000);
1559 }
1560
1561 static inline
1562 u16 freq_r3A_value(u16 frequency)
1563 {
1564         u16 value;
1565
1566         if (frequency < 5091)
1567                 value = 0x0040;
1568         else if (frequency < 5321)
1569                 value = 0x0000;
1570         else if (frequency < 5806)
1571                 value = 0x0080;
1572         else
1573                 value = 0x0040;
1574
1575         return value;
1576 }
1577
1578 void bcm43xx_radio_set_tx_iq(struct bcm43xx_private *bcm)
1579 {
1580         static const u8 data_high[5] = { 0x00, 0x40, 0x80, 0x90, 0xD0 };
1581         static const u8 data_low[5]  = { 0x00, 0x01, 0x05, 0x06, 0x0A };
1582         u16 tmp = bcm43xx_radio_read16(bcm, 0x001E);
1583         int i, j;
1584
1585         for (i = 0; i < 5; i++) {
1586                 for (j = 0; j < 5; j++) {
1587                         if (tmp == (data_high[i] << 4 | data_low[j])) {
1588                                 bcm43xx_phy_write(bcm, 0x0069, (i - j) << 8 | 0x00C0);
1589                                 return;
1590                         }
1591                 }
1592         }
1593 }
1594
1595 int bcm43xx_radio_selectchannel(struct bcm43xx_private *bcm,
1596                                 u8 channel,
1597                                 int synthetic_pu_workaround)
1598 {
1599         struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
1600         u16 r8, tmp;
1601         u16 freq;
1602
1603         if ((radio->manufact == 0x17F) &&
1604             (radio->version == 0x2060) &&
1605             (radio->revision == 1)) {
1606                 if (channel > 200)
1607                         return -EINVAL;
1608                 freq = channel2freq_a(channel);
1609
1610                 r8 = bcm43xx_radio_read16(bcm, 0x0008);
1611                 bcm43xx_write16(bcm, 0x03F0, freq);
1612                 bcm43xx_radio_write16(bcm, 0x0008, r8);
1613
1614                 TODO();//TODO: write max channel TX power? to Radio 0x2D
1615                 tmp = bcm43xx_radio_read16(bcm, 0x002E);
1616                 tmp &= 0x0080;
1617                 TODO();//TODO: OR tmp with the Power out estimation for this channel?
1618                 bcm43xx_radio_write16(bcm, 0x002E, tmp);
1619
1620                 if (freq >= 4920 && freq <= 5500) {
1621                         /*
1622                          * r8 = (((freq * 15 * 0xE1FC780F) >> 32) / 29) & 0x0F;
1623                          *    = (freq * 0.025862069
1624                          */
1625                         r8 = 3 * freq / 116; /* is equal to r8 = freq * 0.025862 */
1626                 }
1627                 bcm43xx_radio_write16(bcm, 0x0007, (r8 << 4) | r8);
1628                 bcm43xx_radio_write16(bcm, 0x0020, (r8 << 4) | r8);
1629                 bcm43xx_radio_write16(bcm, 0x0021, (r8 << 4) | r8);
1630                 bcm43xx_radio_write16(bcm, 0x0022,
1631                                       (bcm43xx_radio_read16(bcm, 0x0022)
1632                                        & 0x000F) | (r8 << 4));
1633                 bcm43xx_radio_write16(bcm, 0x002A, (r8 << 4));
1634                 bcm43xx_radio_write16(bcm, 0x002B, (r8 << 4));
1635                 bcm43xx_radio_write16(bcm, 0x0008,
1636                                       (bcm43xx_radio_read16(bcm, 0x0008)
1637                                        & 0x00F0) | (r8 << 4));
1638                 bcm43xx_radio_write16(bcm, 0x0029,
1639                                       (bcm43xx_radio_read16(bcm, 0x0029)
1640                                        & 0xFF0F) | 0x00B0);
1641                 bcm43xx_radio_write16(bcm, 0x0035, 0x00AA);
1642                 bcm43xx_radio_write16(bcm, 0x0036, 0x0085);
1643                 bcm43xx_radio_write16(bcm, 0x003A,
1644                                       (bcm43xx_radio_read16(bcm, 0x003A)
1645                                        & 0xFF20) | freq_r3A_value(freq));
1646                 bcm43xx_radio_write16(bcm, 0x003D,
1647                                       bcm43xx_radio_read16(bcm, 0x003D) & 0x00FF);
1648                 bcm43xx_radio_write16(bcm, 0x0081,
1649                                       (bcm43xx_radio_read16(bcm, 0x0081)
1650                                        & 0xFF7F) | 0x0080);
1651                 bcm43xx_radio_write16(bcm, 0x0035,
1652                                       bcm43xx_radio_read16(bcm, 0x0035) & 0xFFEF);
1653                 bcm43xx_radio_write16(bcm, 0x0035,
1654                                       (bcm43xx_radio_read16(bcm, 0x0035)
1655                                        & 0xFFEF) | 0x0010);
1656                 bcm43xx_radio_set_tx_iq(bcm);
1657                 TODO(); //TODO: TSSI2dbm workaround
1658                 bcm43xx_phy_xmitpower(bcm);//FIXME correct?
1659         } else {
1660                 if ((channel < 1) || (channel > 14))
1661                         return -EINVAL;
1662
1663                 if (synthetic_pu_workaround)
1664                         bcm43xx_synth_pu_workaround(bcm, channel);
1665
1666                 bcm43xx_write16(bcm, BCM43xx_MMIO_CHANNEL,
1667                                 channel2freq_bg(channel));
1668
1669                 if (channel == 14) {
1670                         if (bcm->sprom.locale == BCM43xx_LOCALE_JAPAN) {
1671                                 bcm43xx_shm_write32(bcm, BCM43xx_SHM_SHARED,
1672                                                     BCM43xx_UCODEFLAGS_OFFSET,
1673                                                     bcm43xx_shm_read32(bcm, BCM43xx_SHM_SHARED,
1674                                                                        BCM43xx_UCODEFLAGS_OFFSET)
1675                                                     & ~(1 << 7));
1676                         } else {
1677                                 bcm43xx_shm_write32(bcm, BCM43xx_SHM_SHARED,
1678                                                     BCM43xx_UCODEFLAGS_OFFSET,
1679                                                     bcm43xx_shm_read32(bcm, BCM43xx_SHM_SHARED,
1680                                                                        BCM43xx_UCODEFLAGS_OFFSET)
1681                                                     | (1 << 7));
1682                         }
1683                         bcm43xx_write16(bcm, BCM43xx_MMIO_CHANNEL_EXT,
1684                                         bcm43xx_read16(bcm, BCM43xx_MMIO_CHANNEL_EXT)
1685                                         | (1 << 11));
1686                 } else {
1687                         bcm43xx_write16(bcm, BCM43xx_MMIO_CHANNEL_EXT,
1688                                         bcm43xx_read16(bcm, BCM43xx_MMIO_CHANNEL_EXT)
1689                                         & 0xF7BF);
1690                 }
1691         }
1692
1693         radio->channel = channel;
1694         //XXX: Using the longer of 2 timeouts (8000 vs 2000 usecs). Specs states
1695         //     that 2000 usecs might suffice.
1696         udelay(8000);
1697
1698         return 0;
1699 }
1700
1701 void bcm43xx_radio_set_txantenna(struct bcm43xx_private *bcm, u32 val)
1702 {
1703         u16 tmp;
1704
1705         val <<= 8;
1706         tmp = bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED, 0x0022) & 0xFCFF;
1707         bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0022, tmp | val);
1708         tmp = bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED, 0x03A8) & 0xFCFF;
1709         bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x03A8, tmp | val);
1710         tmp = bcm43xx_shm_read16(bcm, BCM43xx_SHM_SHARED, 0x0054) & 0xFCFF;
1711         bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0054, tmp | val);
1712 }
1713
1714 /* http://bcm-specs.sipsolutions.net/TX_Gain_Base_Band */
1715 static u16 bcm43xx_get_txgain_base_band(u16 txpower)
1716 {
1717         u16 ret;
1718
1719         assert(txpower <= 63);
1720
1721         if (txpower >= 54)
1722                 ret = 2;
1723         else if (txpower >= 49)
1724                 ret = 4;
1725         else if (txpower >= 44)
1726                 ret = 5;
1727         else
1728                 ret = 6;
1729
1730         return ret;
1731 }
1732
1733 /* http://bcm-specs.sipsolutions.net/TX_Gain_Radio_Frequency_Power_Amplifier */
1734 static u16 bcm43xx_get_txgain_freq_power_amp(u16 txpower)
1735 {
1736         u16 ret;
1737
1738         assert(txpower <= 63);
1739
1740         if (txpower >= 32)
1741                 ret = 0;
1742         else if (txpower >= 25)
1743                 ret = 1;
1744         else if (txpower >= 20)
1745                 ret = 2;
1746         else if (txpower >= 12)
1747                 ret = 3;
1748         else
1749                 ret = 4;
1750
1751         return ret;
1752 }
1753
1754 /* http://bcm-specs.sipsolutions.net/TX_Gain_Digital_Analog_Converter */
1755 static u16 bcm43xx_get_txgain_dac(u16 txpower)
1756 {
1757         u16 ret;
1758
1759         assert(txpower <= 63);
1760
1761         if (txpower >= 54)
1762                 ret = txpower - 53;
1763         else if (txpower >= 49)
1764                 ret = txpower - 42;
1765         else if (txpower >= 44)
1766                 ret = txpower - 37;
1767         else if (txpower >= 32)
1768                 ret = txpower - 32;
1769         else if (txpower >= 25)
1770                 ret = txpower - 20;
1771         else if (txpower >= 20)
1772                 ret = txpower - 13;
1773         else if (txpower >= 12)
1774                 ret = txpower - 8;
1775         else
1776                 ret = txpower;
1777
1778         return ret;
1779 }
1780
1781 void bcm43xx_radio_set_txpower_a(struct bcm43xx_private *bcm, u16 txpower)
1782 {
1783         struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
1784         u16 pamp, base, dac, ilt;
1785
1786         txpower = limit_value(txpower, 0, 63);
1787
1788         pamp = bcm43xx_get_txgain_freq_power_amp(txpower);
1789         pamp <<= 5;
1790         pamp &= 0x00E0;
1791         bcm43xx_phy_write(bcm, 0x0019, pamp);
1792
1793         base = bcm43xx_get_txgain_base_band(txpower);
1794         base &= 0x000F;
1795         bcm43xx_phy_write(bcm, 0x0017, base | 0x0020);
1796
1797         ilt = bcm43xx_ilt_read(bcm, 0x3001);
1798         ilt &= 0x0007;
1799
1800         dac = bcm43xx_get_txgain_dac(txpower);
1801         dac <<= 3;
1802         dac |= ilt;
1803
1804         bcm43xx_ilt_write(bcm, 0x3001, dac);
1805
1806         radio->txpwr_offset = txpower;
1807
1808         TODO();
1809         //TODO: FuncPlaceholder (Adjust BB loft cancel)
1810 }
1811
1812 void bcm43xx_radio_set_txpower_bg(struct bcm43xx_private *bcm,
1813                                  u16 baseband_attenuation, u16 radio_attenuation,
1814                                  u16 txpower)
1815 {
1816         struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
1817         struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
1818
1819         if (baseband_attenuation == 0xFFFF)
1820                 baseband_attenuation = radio->baseband_atten;
1821         if (radio_attenuation == 0xFFFF)
1822                 radio_attenuation = radio->radio_atten;
1823         if (txpower == 0xFFFF)
1824                 txpower = radio->txctl1;
1825         radio->baseband_atten = baseband_attenuation;
1826         radio->radio_atten = radio_attenuation;
1827         radio->txctl1 = txpower;
1828
1829         assert(/*baseband_attenuation >= 0 &&*/ baseband_attenuation <= 11);
1830         if (radio->revision < 6)
1831                 assert(/*radio_attenuation >= 0 &&*/ radio_attenuation <= 9);
1832         else
1833                 assert(/* radio_attenuation >= 0 &&*/ radio_attenuation <= 31);
1834         assert(/*txpower >= 0 &&*/ txpower <= 7);
1835
1836         bcm43xx_phy_set_baseband_attenuation(bcm, baseband_attenuation);
1837         bcm43xx_radio_write16(bcm, 0x0043, radio_attenuation);
1838         bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0064, radio_attenuation);
1839         if (radio->version == 0x2050) {
1840                 bcm43xx_radio_write16(bcm, 0x0052,
1841                                       (bcm43xx_radio_read16(bcm, 0x0052) & ~0x0070)
1842                                        | ((txpower << 4) & 0x0070));
1843         }
1844         //FIXME: The spec is very weird and unclear here.
1845         if (phy->type == BCM43xx_PHYTYPE_G)
1846                 bcm43xx_phy_lo_adjust(bcm, 0);
1847 }
1848
1849 u16 bcm43xx_default_baseband_attenuation(struct bcm43xx_private *bcm)
1850 {
1851         struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
1852
1853         if (radio->version == 0x2050 && radio->revision < 6)
1854                 return 0;
1855         return 2;
1856 }
1857
1858 u16 bcm43xx_default_radio_attenuation(struct bcm43xx_private *bcm)
1859 {
1860         struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
1861         struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
1862         u16 att = 0xFFFF;
1863
1864         if (phy->type == BCM43xx_PHYTYPE_A)
1865                 return 0x60;
1866
1867         switch (radio->version) {
1868         case 0x2053:
1869                 switch (radio->revision) {
1870                 case 1:
1871                         att = 6;
1872                         break;
1873                 }
1874                 break;
1875         case 0x2050:
1876                 switch (radio->revision) {
1877                 case 0:
1878                         att = 5;
1879                         break;
1880                 case 1:
1881                         if (phy->type == BCM43xx_PHYTYPE_G) {
1882                                 if (bcm->board_vendor == PCI_VENDOR_ID_BROADCOM &&
1883                                     bcm->board_type == 0x421 &&
1884                                     bcm->board_revision >= 30)
1885                                         att = 3;
1886                                 else if (bcm->board_vendor == PCI_VENDOR_ID_BROADCOM &&
1887                                          bcm->board_type == 0x416)
1888                                         att = 3;
1889                                 else
1890                                         att = 1;
1891                         } else {
1892                                 if (bcm->board_vendor == PCI_VENDOR_ID_BROADCOM &&
1893                                     bcm->board_type == 0x421 &&
1894                                     bcm->board_revision >= 30)
1895                                         att = 7;
1896                                 else
1897                                         att = 6;
1898                         }
1899                         break;
1900                 case 2:
1901                         if (phy->type == BCM43xx_PHYTYPE_G) {
1902                                 if (bcm->board_vendor == PCI_VENDOR_ID_BROADCOM &&
1903                                     bcm->board_type == 0x421 &&
1904                                     bcm->board_revision >= 30)
1905                                         att = 3;
1906                                 else if (bcm->board_vendor == PCI_VENDOR_ID_BROADCOM &&
1907                                          bcm->board_type == 0x416)
1908                                         att = 5;
1909                                 else if (bcm->chip_id == 0x4320)
1910                                         att = 4;
1911                                 else
1912                                         att = 3;
1913                         } else
1914                                 att = 6;
1915                         break;
1916                 case 3:
1917                         att = 5;
1918                         break;
1919                 case 4:
1920                 case 5:
1921                         att = 1;
1922                         break;
1923                 case 6:
1924                 case 7:
1925                         att = 5;
1926                         break;
1927                 case 8:
1928                         att = 0x1A;
1929                         break;
1930                 case 9:
1931                 default:
1932                         att = 5;
1933                 }
1934         }
1935         if (bcm->board_vendor == PCI_VENDOR_ID_BROADCOM &&
1936             bcm->board_type == 0x421) {
1937                 if (bcm->board_revision < 0x43)
1938                         att = 2;
1939                 else if (bcm->board_revision < 0x51)
1940                         att = 3;
1941         }
1942         if (att == 0xFFFF)
1943                 att = 5;
1944
1945         return att;
1946 }
1947
1948 u16 bcm43xx_default_txctl1(struct bcm43xx_private *bcm)
1949 {
1950         struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
1951
1952         if (radio->version != 0x2050)
1953                 return 0;
1954         if (radio->revision == 1)
1955                 return 3;
1956         if (radio->revision < 6)
1957                 return 2;
1958         if (radio->revision == 8)
1959                 return 1;
1960         return 0;
1961 }
1962
1963 void bcm43xx_radio_turn_on(struct bcm43xx_private *bcm)
1964 {
1965         struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
1966         struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
1967         int err;
1968
1969         if (radio->enabled)
1970                 return;
1971
1972         switch (phy->type) {
1973         case BCM43xx_PHYTYPE_A:
1974                 bcm43xx_radio_write16(bcm, 0x0004, 0x00C0);
1975                 bcm43xx_radio_write16(bcm, 0x0005, 0x0008);
1976                 bcm43xx_phy_write(bcm, 0x0010, bcm43xx_phy_read(bcm, 0x0010) & 0xFFF7);
1977                 bcm43xx_phy_write(bcm, 0x0011, bcm43xx_phy_read(bcm, 0x0011) & 0xFFF7);
1978                 bcm43xx_radio_init2060(bcm);
1979                 break;
1980         case BCM43xx_PHYTYPE_B:
1981         case BCM43xx_PHYTYPE_G:
1982                 bcm43xx_phy_write(bcm, 0x0015, 0x8000);
1983                 bcm43xx_phy_write(bcm, 0x0015, 0xCC00);
1984                 bcm43xx_phy_write(bcm, 0x0015, (phy->connected ? 0x00C0 : 0x0000));
1985                 err = bcm43xx_radio_selectchannel(bcm, BCM43xx_RADIO_DEFAULT_CHANNEL_BG, 1);
1986                 assert(err == 0);
1987                 break;
1988         default:
1989                 assert(0);
1990         }
1991         radio->enabled = 1;
1992         dprintk(KERN_INFO PFX "Radio turned on\n");
1993 }
1994
1995 void bcm43xx_radio_turn_off(struct bcm43xx_private *bcm)
1996 {
1997         struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
1998         struct bcm43xx_radioinfo *radio = bcm43xx_current_radio(bcm);
1999
2000         if (phy->type == BCM43xx_PHYTYPE_A) {
2001                 bcm43xx_radio_write16(bcm, 0x0004, 0x00FF);
2002                 bcm43xx_radio_write16(bcm, 0x0005, 0x00FB);
2003                 bcm43xx_phy_write(bcm, 0x0010, bcm43xx_phy_read(bcm, 0x0010) | 0x0008);
2004                 bcm43xx_phy_write(bcm, 0x0011, bcm43xx_phy_read(bcm, 0x0011) | 0x0008);
2005         }
2006         if (phy->type == BCM43xx_PHYTYPE_G && bcm->current_core->rev >= 5) {
2007                 bcm43xx_phy_write(bcm, 0x0811, bcm43xx_phy_read(bcm, 0x0811) | 0x008C);
2008                 bcm43xx_phy_write(bcm, 0x0812, bcm43xx_phy_read(bcm, 0x0812) & 0xFF73);
2009         } else
2010                 bcm43xx_phy_write(bcm, 0x0015, 0xAA00);
2011         radio->enabled = 0;
2012         dprintk(KERN_INFO PFX "Radio turned off\n");
2013 }
2014
2015 void bcm43xx_radio_clear_tssi(struct bcm43xx_private *bcm)
2016 {
2017         struct bcm43xx_phyinfo *phy = bcm43xx_current_phy(bcm);
2018
2019         switch (phy->type) {
2020         case BCM43xx_PHYTYPE_A:
2021                 bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0068, 0x7F7F);
2022                 bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x006a, 0x7F7F);
2023                 break;
2024         case BCM43xx_PHYTYPE_B:
2025         case BCM43xx_PHYTYPE_G:
2026                 bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0058, 0x7F7F);
2027                 bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x005a, 0x7F7F);
2028                 bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0070, 0x7F7F);
2029                 bcm43xx_shm_write16(bcm, BCM43xx_SHM_SHARED, 0x0072, 0x7F7F);
2030                 break;
2031         }
2032 }